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APW8819 Datasheet(PDF) 6 Page - Anpec Electronics Coropration

Part # APW8819
Description  DDR TOTAL POWER SOLUTION SYNCHRONOUS BUCK CONTROLLER WITH 1.5A LDO
PDF  28 Pages
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Manufacturer  ANPEC [Anpec Electronics Coropration]
Direct Link  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW8819 Datasheet(HTML) 6 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.6 - May, 2013
APW8819
www.anpec.com.tw
6
Electrical Characteristics (Cont.)
APW8819
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
PWM CONTROLLERS
VIN=12V, VVDDQSNS=1.8V, RMODE=100 k
Ω
270
300
330
kHz
FSW
Operating Frequency
VIN=12V, VVDDQSNS=1.8V, RMODE=200 k
Ω
360
400
440
kHz
TSS
Internal Soft Start Time
S5 is High to VOUT Regulation
0.9
1.2
1.5
ms
TOFF(MIN)
Minimum off Time
350
450
550
ns
TON(MIN)
Minimum on Time
80
110
140
ns
Zero-Crossing Threshold
-9.5
0.5
10.5
mV
VDDQ PROTECTIONS
TA = 25
oC
9
10
11
µA
OC Pin Source Current
Temperature Coefficient,
On The Basis of 25 οC
-
4500
-
ppm/
oC
OCP Comparator Offset
(VOC – VPGND) – (VPGND – VPHASE),
VOC – VPGND = 60mV
-10
0
+10
mV
VDDQ Current Limit Setting Range
VOC-VPGND
0.2
-
3
V
VDDQ OVP Trip Threshold
VVDDQ Rising
120
125
130
%
VDDQ OVP Debounce Delay
VVDDQ Rising, DV=10mV
-
2
-
µs
VDDQ UVP Trip Threshold
VVDDQ Falling
40
50
60
%
VDDQ UVP Trip Hysteresis
-
3
-
%
VDDQ UVP Debounce
-
16
-
µs
VDDQ UVP Enable Delay
2
2.4
2.8
ms
POK
POK in from Lower (POK Goes High)
87
90
93
%
VPOK
POK Threshold
POK Out from Normal (POK Goes Low)
120
125
130
%
IPOK
POK Leakage Current
VPOK=5V
-
0.1
1.0
µA
POK Sink Current
VPOK=0.5V
2.5
7.5
-
mA
POK Enable Delay Time
S5 High to POK High
2
2.4
2.8
ms
POK Delay Time
Delay for POK In
-
63
-
µs
GATE DRIVERS
UGATE Pull-Up Resistance
BOOT-UGATE=0.5V
-
1.5
3
Ω
UGATE Sink Resistance
UGATE-PHASE=0.5V
-
0.7
1.8
Ω
LGATE Pull-Up Resistance
VCC-LGATE=0.5V
-
1
2.2
Ω
LGATE Sink Resistance
LGATE-PGND=0.5V
-
0.5
1.2
Ω
UGATE to LGATE Dead time
UGATE falling to LGATE rising, no load
-
20
-
ns
LGATE to UGATE Dead time
LGATE falling to UGATE rising, no load
-
20
-
ns
Refer to the typical application circuits. These specifications apply over V
VCC=VBOOT=5V, VIN=12V and TA= -40 ~ 85 °C, unless
otherwise specified. Typical values are at T
A=25°C.



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